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/*
* Copyright (c) 2024, sakumisu
*
* SPDX-License-Identifier: Apache-2.0
*/
#include "usbh_core.h"
#include "usbh_msc.h"
#include "rtthread.h"
#include <dfs_fs.h>
#define DEV_FORMAT "/dev/sd%c"
#ifndef CONFIG_USB_DFS_MOUNT_POINT
#define CONFIG_USB_DFS_MOUNT_POINT "/"
#endif
#if defined(SOC_SERIES_STM32H7) || defined(SOC_SERIES_STM32F7) || \
defined(SOC_HPM5000) || defined(SOC_HPM6000) || defined(SOC_HPM6E00) || defined(BSP_USING_BL61X)
#ifndef RT_USING_CACHE
#error usbh msc must enable RT_USING_CACHE in this chip
#endif
#if RT_ALIGN_SIZE != 32 && RT_ALIGN_SIZE != 64
#error usbh msc must set cache line to 32 or 64
#endif
#endif
#if defined(BSP_USING_BL61X)
#include "bflb_l1c.h"
void rt_hw_cpu_dcache_ops(int ops, void *addr, int size)
{
if (ops == RT_HW_CACHE_FLUSH) {
bflb_l1c_dcache_clean_range(addr, size);
} else {
bflb_l1c_dcache_invalidate_range(addr, size);
}
}
#endif
USB_NOCACHE_RAM_SECTION USB_MEM_ALIGNX uint8_t msc_sector[512];
static rt_err_t rt_udisk_init(rt_device_t dev)
{
return RT_EOK;
}
static ssize_t rt_udisk_read(rt_device_t dev, rt_off_t pos, void *buffer,
rt_size_t size)
{
struct usbh_msc *msc_class = (struct usbh_msc *)dev->user_data;
int ret;
#ifdef RT_USING_CACHE
rt_uint32_t *align_buf;
if ((uint32_t)buffer & (RT_ALIGN_SIZE - 1)) {
align_buf = rt_malloc_align(size * msc_class->blocksize, RT_ALIGN_SIZE);
if (!align_buf) {
rt_kprintf("msc get align buf failed\n");
return 0;
}
} else {
align_buf = (rt_uint32_t *)buffer;
}
ret = usbh_msc_scsi_read10(msc_class, pos, (uint8_t *)align_buf, size);
if (ret < 0) {
rt_kprintf("usb mass_storage read failed\n");
return 0;
}
rt_hw_cpu_dcache_ops(RT_HW_CACHE_INVALIDATE, align_buf, size * msc_class->blocksize);
if ((uint32_t)buffer & (RT_ALIGN_SIZE - 1)) {
rt_memcpy(buffer, align_buf, size * msc_class->blocksize);
rt_free_align(align_buf);
}
#else
ret = usbh_msc_scsi_read10(msc_class, pos, buffer, size);
if (ret < 0) {
rt_kprintf("usb mass_storage read failed\n");
return 0;
}
#endif
return size;
}
static ssize_t rt_udisk_write(rt_device_t dev, rt_off_t pos, const void *buffer,
rt_size_t size)
{
struct usbh_msc *msc_class = (struct usbh_msc *)dev->user_data;
int ret;
#ifdef RT_USING_CACHE
rt_uint32_t *align_buf;
if ((uint32_t)buffer & (RT_ALIGN_SIZE - 1)) {
align_buf = rt_malloc_align(size * msc_class->blocksize, RT_ALIGN_SIZE);
if (!align_buf) {
rt_kprintf("msc get align buf failed\n");
return 0;
}
rt_memcpy(align_buf, buffer, size * msc_class->blocksize);
} else {
align_buf = (rt_uint32_t *)buffer;
}
rt_hw_cpu_dcache_ops(RT_HW_CACHE_FLUSH, align_buf, size * msc_class->blocksize);
ret = usbh_msc_scsi_write10(msc_class, pos, (uint8_t *)align_buf, size);
if (ret < 0) {
rt_kprintf("usb mass_storage write failed\n");
return 0;
}
if ((uint32_t)buffer & (RT_ALIGN_SIZE - 1)) {
rt_free_align(align_buf);
}
#else
ret = usbh_msc_scsi_write10(msc_class, pos, buffer, size);
if (ret < 0) {
rt_kprintf("usb mass_storage write failed\n");
return 0;
}
#endif
return size;
}
static rt_err_t rt_udisk_control(rt_device_t dev, int cmd, void *args)
{
/* check parameter */
RT_ASSERT(dev != RT_NULL);
struct usbh_msc *msc_class = (struct usbh_msc *)dev->user_data;
if (cmd == RT_DEVICE_CTRL_BLK_GETGEOME) {
struct rt_device_blk_geometry *geometry;
geometry = (struct rt_device_blk_geometry *)args;
if (geometry == RT_NULL)
return -RT_ERROR;
geometry->bytes_per_sector = msc_class->blocksize;
geometry->block_size = msc_class->blocksize;
geometry->sector_count = msc_class->blocknum;
}
return RT_EOK;
}
#ifdef RT_USING_DEVICE_OPS
const static struct rt_device_ops udisk_device_ops = {
rt_udisk_init,
RT_NULL,
RT_NULL,
rt_udisk_read,
rt_udisk_write,
rt_udisk_control
};
#endif
int udisk_init(struct usbh_msc *msc_class)
{
rt_err_t ret = 0;
rt_uint8_t i;
struct dfs_partition part0;
struct rt_device *dev;
char name[CONFIG_USBHOST_DEV_NAMELEN];
char mount_point[CONFIG_USBHOST_DEV_NAMELEN];
dev = rt_malloc(sizeof(struct rt_device));
memset(dev, 0, sizeof(struct rt_device));
snprintf(name, CONFIG_USBHOST_DEV_NAMELEN, DEV_FORMAT, msc_class->sdchar);
snprintf(mount_point, CONFIG_USBHOST_DEV_NAMELEN, CONFIG_USB_DFS_MOUNT_POINT, msc_class->sdchar);
ret = usbh_msc_scsi_read10(msc_class, 0, msc_sector, 1);
if (ret != RT_EOK) {
rt_kprintf("usb mass_storage read failed\n");
rt_free(dev);
return ret;
}
for (i = 0; i < 4; i++) {
/* Get the first partition */
ret = dfs_filesystem_get_partition(&part0, msc_sector, i);
if (ret == RT_EOK) {
rt_kprintf("Found partition %d: type = %d, offet=0x%x, size=0x%x\n",
i, part0.type, part0.offset, part0.size);
break;
} else {
break;
}
}
dev->type = RT_Device_Class_Block;
#ifdef RT_USING_DEVICE_OPS
dev->ops = &udisk_device_ops;
#else
dev->init = rt_udisk_init;
dev->read = rt_udisk_read;
dev->write = rt_udisk_write;
dev->control = rt_udisk_control;
#endif
dev->user_data = msc_class;
rt_device_register(dev, name, RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_REMOVABLE | RT_DEVICE_FLAG_STANDALONE);
ret = dfs_mount(name, mount_point, "elm", 0, 0);
if (ret == 0) {
rt_kprintf("udisk: %s mount successfully\n", name);
} else {
rt_kprintf("udisk: %s mount failed, ret = %d\n", name, ret);
}
return ret;
}
void usbh_msc_run(struct usbh_msc *msc_class)
{
udisk_init(msc_class);
}
void usbh_msc_stop(struct usbh_msc *msc_class)
{
struct rt_device *dev;
char name[CONFIG_USBHOST_DEV_NAMELEN];
char mount_point[CONFIG_USBHOST_DEV_NAMELEN];
snprintf(name, CONFIG_USBHOST_DEV_NAMELEN, DEV_FORMAT, msc_class->sdchar);
snprintf(mount_point, CONFIG_USBHOST_DEV_NAMELEN, CONFIG_USB_DFS_MOUNT_POINT, msc_class->sdchar);
dfs_unmount(mount_point);
dev = rt_device_find(name);
if (dev) {
rt_device_unregister(dev);
rt_free(dev);
}
}
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